variable in RegExp //can anyone move this to "javascript"


//fyrst I have a string
var string="abcg99defg";

//and a variable
var variabl=99;

now I like to replace g99 // that's the variable and 1 letter in front of it
with ''; //thats nothing

string=string.replace(/.variabl/gi)  //can I have variable in here? <-- problem!

output   string="abcdefg"

hope somebody understand me :P, thx
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

You can use new RegExp to creat your regex object:

var string="abcg99defg";
var variable=99;

var rx = new RegExp('g' + variable, "gi");
string = string.replace(rx,'');


Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
LakioAuthor Commented:
thx, very good answer but g must be any letter (is that a .?)
LakioAuthor Commented:
var string="abcg99defg";
var variable=99;

var rx = new RegExp("." + variable, "gi");
string = string.replace(rx,'');


thank you hernst this works fine :)
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Web Development

From novice to tech pro — start learning today.